. en i msl a PEGS aes ean) MR Sarg RAC co une by Mea ? yy ct 
Ps) ae i Ra cad ees si Py Ty tte t 5 Bs SSP PVE a ILS AT! | RNR ype “i 
Oe wh Bay ; Si A ‘i eo ¢ A in et Ran ina f Mike at 
New Yorx AgricuttoraL Experiment STATION. 537 

may secure but a small per cent. of sound seed as was the case 
with the yield from a badly diseased row in one of the experi- 
i - mental plots the past season. Ninety per cent. of the entire yield 
was marketable, but only one per cent. was fit for seed. If, how- 
ever, any one knowing the life history of the disease is content to 
; _ plant infected seed, surely there is no ground for complaint if he - 
reaps what he has sown. 
By means of the following tables, the yield of the crop grown 
from healthy seed may be compared with the yield from an equal 
area Planted with diseased seed and with a third equal area which 
* — was planted with diseased seed and the plants sprayed with or- 
deaux mixture. In column I is given a comparison of the yield of 
pods counting the total yield of plants from healthy seed as 100. 
In column II a similar comparison of the weight of the total yield 
is given. 

ie Ul. 
Yield by Yeild by 
, numberof weight of 
pods. pods. 
| Healthy seed ..... Ee td cRtaMe Vesta ks el aillony dam oe 100 100 
MINER CEE ROLE FRY PUL he hs shdid veg wie leo 90 83" 
EAT UNIX UBC Oa fle oe Matt ees UPd 115 123 
A SPRAYING DISEASED PLANTS.— Spraying plants with weak Bor- 
deatix mixture gave the best results of any treatment with 
fungicides tested. The formula used was two pounds of copper. 
sulphate and one and one-third pounds of freshly slaked lime to 
thirty gallons of water, and enough soap to make a suds. The 
object of adding the soap is to cause the mixture when applied in 
he a fine spray to form a thin film or coating over the entire surface of 
a the leaf instead of standing in separate, even though minute, 
drops. If soap is not used it would probably be best to use less 
Bs water with the weight of copper and lime above given, taking 
a rather from twenty-one to twenty-six gallons of water for the 
. «iven amount of the other ingredients. 
Lm 
yi The first spraying was given fourteen days after planting. At 
this time very few plants had expanded the third leaf. The 
withering distorted foliage and the black pits on stem and sced 
68 | 
ae 
Moe 

